Javascript console.table() method

The console.table() method displays tabular data as a table.

This function takes one mandatory argument data, which must be an array or an object, and one additional optional parameter columns.

It logs data as a table. Each element in the array (or enumerable property if data is an object) will be a row in the table.

The first column in the table will be labeled (index). If data is an array, then its values will be the array indices. If data is an object, then its values will be the property names. Note that (in Firefox) console.table is limited to displaying 1000 rows (first row is the labeled index).

// an object whose properties are strings

function Person(firstName, lastName) {
 this.firstName = firstName;
 this.lastName = lastName;
}
const me = new Person("Tyrone", "Jones");
console.table(me);

Collections of compound types

If the elements in the array, or properties in the object, are themselves arrays or objects, then their elements or properties are enumerated in the row, one per column:

// an array of arrays

const people = [
  ["Tyrone", "Jones"],
  ["Janet", "Smith"],
  ["Maria", "Cruz"],
];
console.table(people);